2020-2025
From January 2018 to December 2024, 75% of Lassa fever confirmed cases were from Ondo (33%), Edo (31%) and Bauchi (11%).
In 2025, as of epi week 26, 87% of LF cases are from Ondo (31%), Bauchi (24%), Edo (17%), and Taraba (15%) States.
Total confirmed cases: 790
Deaths from Confirmed Cases: 148
Case Fatality Ratio: 19%
Number of Health Care Workers: 23
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 1989 | 248 | 29 | 12% | ||||
| 2024 | 1591 | 239 | 16 | 7% | ||||
| 2023 | 1728 | 326 | 37 | 11% | ||||
| 2022 | 970 | 243 | 44 | 18% | ||||
| 2021 | 431 | 97 | 29 | 30% | ||||
| 2020 | 760 | 346 | 61 | 18% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 860 | 187 | 16 | 9% | ||||
| 2024 | 816 | 163 | 29 | 18% | ||||
| 2023 | 729 | 111 | 21 | 19% | ||||
| 2022 | 686 | 117 | 12 | 10% | ||||
| 2021 | 61 | 10 | 2 | 20% | ||||
| 2020 | 282 | 44 | 20 | 45% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 1940 | 134 | 24 | 18% | ||||
| 2024 | 1911 | 204 | 26 | 13% | ||||
| 2023 | 2367 | 284 | 36 | 13% | ||||
| 2022 | 1840 | 208 | 28 | 13% | ||||
| 2021 | 1208 | 144 | 14 | 10% | ||||
| 2020 | 1477 | 335 | 39 | 12% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 322 | 117 | 35 | 30% | ||||
| 2024 | 231 | 99 | 21 | 21% | ||||
| 2023 | 276 | 93 | 29 | 31% | ||||
| 2022 | 84 | 34 | 15 | 44% | ||||
| 2021 | 56 | 18 | 11 | 61% | ||||
| 2020 | 115 | 57 | 22 | 39% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 250 | 22 | 12 | 55% | ||||
| 2024 | 286 | 43 | 24 | 56% | ||||
| 2023 | 226 | 50 | 27 | 54% | ||||
| 2022 | 223 | 40 | 19 | 48% | ||||
| 2021 | 89 | 17 | 8 | 47% | ||||
| 2020 | 238 | 76 | 22 | 29% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 73 | 15 | 4 | 27% | ||||
| 2024 | 125 | 31 | 3 | 10% | ||||
| 2023 | 39 | 11 | 1 | 9% | ||||
| 2022 | 121 | 46 | 7 | 15% | ||||
| 2021 | 7 | 2 | 0 | 0% | ||||
| 2020 | 94 | 38 | 8 | 21% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 87 | 14 | 7 | 50% | ||||
| 2024 | 30 | 4 | 2 | 50% | ||||
| 2023 | 42 | 8 | 2 | 25% | ||||
| 2022 | 191 | 24 | 8 | 33% | ||||
| 2021 | 6 | 0 | 0 | – | ||||
| 2020 | 35 | 9 | 2 | 22% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 74 | 11 | 5 | 45% | ||||
| 2024 | 1056 | 63 | 11 | 17% | ||||
| 2023 | 153 | 36 | 3 | 8% | ||||
| 2022 | 199 | 35 | 8 | 23% | ||||
| 2021 | 21 | 6 | 0 | 0% | ||||
| 2020 | 39 | 9 | 4 | 44% | ||||
Source: NCDC |
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Any questions or suggestions? Contact us: Anaïs Legand and Antoine Chaillon
As of 2025, week 26